(2R,3r,4s,5r,6r)-3,4,5-三s(苄氧基)-2-溴-6-(3-苯基丙基)四氢-2H-吡喃 、
methyl 2-O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl)-4-O-benzyl-α-L-rhamnopyranoside 在
mercury dibromide 作用下,
以
二氯甲烷 为溶剂,
反应 22.0h,
生成 methyl 2-O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl)-4-O-benzyl-3-O-(2,3,4,6-tetra-O-benzyl-β-D-glucopyranosyl)-α-L-rhamnopyranoside 、 methyl 2-O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl)-4-O-benzyl-3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-L-rhamnopyranoside